Machine for cutting and heading wire for manufacturing wood



UNTTEn sTaTns PATENT orricn.

JEREMIAH H. PIERSON, F RAMAPO, NEW YORK.

MAC'HNE FOR CUTTING AND HEADING WIRE Fon MANUFACTURING Woon SCREWS ANDRIvETs.

Specification forming part of Letters Patent No. 86, dated November 26,v1836; Reissued'March 8, 1848. A Y i l machine on one side, and Figure lin Drawing No. 2, is a plan, or top view. The other figures on thissheet, show such parts in de- Vtail as is thought necessary7 so torepresent.

In each of the figures corresponding parts are designated by the sameletters of reference.

In the Drawing No. l, the frame A, is represented by red lines, whichare not allowed to interfere with a view of those parts within it whichwould be in view were it removed, they are not therefore drawn in dottedlines. The coil of wire from which the blanksY are to be cut, is placedon a reel, and is straightened as it enters the machine by passing'alternately over and under the straightening rollers a, a, a. The wireis drawn into the machine', cut off, and headed by the action cams, andeccentric grooves upon levers which guide and control the apparatus usedfor these purposes, in a way to be now described. A main shaft B, re-

volving in suitable boxes, is turned by means of a band pushing roundthe whirl, or pulley C, or by any suitable gearing, and on the oppositeend of this shaft there is a iy wheel D, which is not shown in theelevation drawing No. l, as it would obscure parts which it is importantto show. The wire is drawn into the machine by means of rods Y b, b, b,(shown separately in Fig. 7,) which are acted upon by the cams C C onthe outside of the frame, the cam as shown in Drawing No. l, pressing asit revolves against the vertical arm A, which is adjustable on the rod,by means of a tightening screw. A similar cam, and rod are placed on theopposite side of the machine, the rod is strengthened by oblique bracesto give it the4v requisite stiffness, but these braces are not shown indrawing. A reacting spring e, is used to draw the rod back when not heldby the cai/n.

y f, f, are nippers which seize the wire, and draw it 4forward to theextent desired by the action of the rod b, I), the nwire passes througha hole in the block E, where it is cut off by the cutting dies to bepresently described. The nippers f, f, rest, 'and have their fulcraupon'a sliding plate g, g, the ends of which move freely in groovesunder the plates 7L, 7L. The wedges z', z', hold the wire in its placeready to be drawn forward by the nip'pers y, f, they are closed upon thewire by the retracting of the nipper plate which is thereby brought intocontact with them, and when the wire drawn forward by the nippersloosened. The wedges, and straightening rollers are affixed to the samesliding frame j, j, which is adjusted by the set screws 7c, 7c, that thewedges may be correctly acted upon rby the upper plate to cause thisplate to slide back when not held forward a spring similar to those ate, e, rises from the middle of the frame, and acts upon thevunder partof it, this spring is seen at c, in the elevation. The head block E,contains the cutting tongs which open, and close, and slide up, and downwithin it. The head of these tongs is seen at F, Fig. l, the opening ormortise, within which they slide being designated by the continuous linesurround` ing that letter, and also F, Fig. 2, in this ligure that sideof the head block, E, which is toward the heading die shown. The shanksof the cutting tongs extend down through the cross bar G, the mortisesin this cross bar through which they pass allowing them to open, andclose to the requisite distance, but the tongs rise, and fall with therising, and falling of this bar, having checks, or notches which bearagainst its upper and lower sides as shown by the pins 7c, 7c.

Z, is the joint pin of the tongs which projects into, and slides in aslot m, through either Yside of the head block, thus serving to guide itup, and down. a, n, are guidev rods to guide the bar G, and o, 0, aremortises, or openings which receive the ends of the levers by which itis raised, and lowered at the proper period. The tongs are representedas closed, and the cutting dies are not shown, they being situated onthe opposite face of the tongs, and beingmade in the ordinary way. Whenthe wire is fed in it passes between the dies, the tongs being thenopen, and the space p, being opposite to the hole through which the wirepasses in front of the head block. When the wire has been drawn in thetongs are closed and it is cut off. The tongs are then raised, and thewire is carried up within the opening p, so as to bring its projectingend opposite to the heading die while the opposite end rests against thesolid partrof the head block, which is there formed of steel to sustain,and resist the pressure of the heading die, when the heading iscompleted the tongs again descend, and a new piece of wire being fed inpushes the headed blank out, and occupies its place, for ordinaryblanks. The opening p, is conntersunk to form the under side of thehead.

The levers H, H, Fig. 4, serve to open, and close the tongs, g, g, beingtheir fulcra, their ends 71, 7, being guided by the zigzag grooves inthe wheels I, I, on the main shaft, B, as shown also in Fig. `l'. Thenotches at their ends S, S, embrace the Shanks of the tongs which slideup, and down freely within them. The levers J, J, 6, are for raising,and lowering the tongs their ends t, t, being alternately acted upon bythe cams w, fw, seen in place in the shaft B, in Fig. l. Their ends 0,0, pass into the mortises o, 0, in the rail of the tongs their fulcraare at o, in a standard placed to receive them. Vhen the wire has beencut, and the tongs raised so as to present its projecting end to theheading die a cam 7a, Figs. 3, and 5, on the center of the shaft B,raises the progressive levers or toggle joint L, L, by its coming intocontact with the lower end of the descending joint piece M. A guidepiece N, is jointed to M, and to the frame to govern the motion of thetogglejoint.

O, is a sliding belt passing through the socket head I), and carryingthe heading die, which is to be either flat, or hollow according to theform to be given to the head of the blank. There are iron bracesextending from the front head block E, to the back end of the frame tobind them together', and sustain them against the force of the togglejoint in the heading process, these are shown in the top view Fig. l,and are marked, w, fw, but they are omitted in the elevation, in orderto alford a clearer view of the working parts.

A machine of this kind will vary so materially in size, and in theproportion of its parts according to the size of the blank, to be cut,and headed, that I have deemed it superfluous, to give any scale, orestimation of these, nor will they be found necessary by any competentmachinist who would not fail to construct it with the requisitestrength, which is the main point in these particulars.

Having thus fully described the construction of my said machine, and themanner in which the same operates, I do hereby declare that I do notintend to claim as my invention any of the individual parts of which thesame is composed separately, and distinctly from the purposes for whichI have employed them, and the manner in which I have combined themtogether. Cams, zigzag wheels, levers, toggle-joints, and the otherindividual parts described are the elements of numerous other machines.But

What I do claim as my invention is* The mode of feeding in the wire,combining the action of the nippers, and their sliding plate, with thewedges for holding the wire, and their adjustments, also in conjunctiontherewith the manner of cutting off the wire7 and raising, anddepresesing the cutting tongs, with a concurrent action of the headingdie, produced, and operating substantially in the manner herein setforth.

J ERM. I-I. PIERSON.

Witnesses:

ANTHONY HAUsToN, JAMES II. Ross.

[FIRST PRINTED 1914.]

